Q: What is the digital root of 631,423,172

 A: 2

Why is 2 the digital root of the number 631,423,172?

The digital root of a number is calculated by splitting the digits of a number and then adding them together. You keep splitting and adding the digits until you reach a single positive number.

How do you calculate the digital root of 631,423,172?


Split the number up and add each digit together:


6 + 3 + 1 + 4 + 2 + 3 + 1 + 7 + 2 = 29

If the answer is more than one digit, you would add each digit of the answer together again:

2 + 9 = 11

The answer is more than one digit again, we need to add each digit one more time:

1 + 1 = 2

What is the digital root of number 631,423,172?

Answer: 2


More Examples

Number 631,423,170631,423,171631,423,173631,423,174
Digital Root 9134

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